/*
 * Copyright (C) 2004 Dizzy (dizzy@roedu.net)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef __ATTRGROUP_H_INCLUDED__
#define __ATTRGROUP_H_INCLUDED__

#ifdef HAVE_TIME_H
# include <time.h>
#endif
#include "common/elist.h"

#define ATTRGROUP_FLAG_NONE	0
#define ATTRGROUP_FLAG_LOADED	1
#define ATTRGROUP_FLAG_ACCESSED	2
#define ATTRGROUP_FLAG_DIRTY	4

#include "attr.h"

/* attrgroup represents a group of attributes which are read/saved/flush together
 * ex: each account stores it's data into a attrgroup */
 
struct _t_attr_key
{
  typedef string result_type; 
  const result_type& operator()(const t_attr*r)const // operator() must be const
  {
    return r->key;
  }
	;
};

typedef multi_index_container
<
	t_attr*,
	indexed_by
	<
		hashed_unique
		<
			tag<tag_name>,
			_t_attr_key
		>
	>
> attrs_type;

#ifndef JUST_NEED_TYPES
#define JUST_NEED_TYPES
#include "storage.h"
#undef JUST_NEED_TYPES
#else
#include "storage.h"
#endif


#define t_storage_info void

typedef struct attrgroup_struct 
#ifdef ATTRGROUP_INTERNAL_ACCESS
{
    attrs_type		list;
    t_storage_info	*storage;
    int			flags;
    time_t		lastaccess;
    time_t		dirtytime;
    t_elist		loadedlist;
    t_elist		dirtylist;
} 
#endif
t_attrgroup;



typedef int (*t_attr_cb)(t_attrgroup *, void *);

extern t_attrgroup *attrgroup_create_storage(t_storage_info *storage);
extern t_attrgroup *attrgroup_create_newuser(const char *name);
extern t_attrgroup *attrgroup_create_nameuid(const char *name, unsigned uid);
extern int attrgroup_destroy(t_attrgroup *attrgroup);
extern int attrgroup_load(t_attrgroup *attrgroup);
extern int attrgroup_unload(t_attrgroup *attrgroup);
extern int attrgroup_read_accounts(int flag, t_attr_cb cb, void *data);
extern const char *attrgroup_get_attr(t_attrgroup *attrgroup, const char *key);
extern int attrgroup_set_attr(t_attrgroup *attrgroup, const char *key, const char *val);
extern int attrgroup_save(t_attrgroup *attrgroup, int flags);
extern int attrgroup_flush(t_attrgroup *attrgroup, int flags);

#endif /* __ATTRGROUP_H_INCLUDED__ */
